We, FDA, are notifying you, blood establishments that collect blood and blood components for transfusion or further manufacture, including Source Plasma, that we have determined Ebola virus to be a transfusion-transmitted infection (TTI) under Title 21 of the Code of Federal Regulations (CFR) 630.3(l). We are also providing you with recommendations for assessing blood donor eligibility, donor deferral and blood product management in the event that an outbreak of Ebola virus disease (EVD) with widespread transmission occurs in at least one country. This guidance document applies to Ebola virus (species Zaire ebolavirus).1 The recommendations in section III. of this guidance document apply to the routine collection of blood and blood components for transfusion or further manufacture, including Source Plasma. The collection of convalescent plasma from EVD survivors is addressed in section V. of this guidance document. This guidance finalizes the draft guidance entitled, “Recommendations for Assessment of Blood Donor Suitability, Donor Deferral and Blood Product Management in Response to Ebola Virus,” dated December 2015.